Home / 12,221.73-18,330.96-3,457.41

Finding the Fourth Proportional to 12,221.73, 18,330.96 and 3,457.41

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Solution

The fourth proportional to 12,221.73, 18,330.96 and 3,457.41 is: 5,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.73 : 18,330.96 = 3,457.41 : x
  2. Step 2: Convert to fraction form
    12,221.73/18,330.96 = 3,457.41/x
  3. Step 3: Cross multiply
    12,221.73x = 18,330.96 × 3,457.41
  4. Step 4: Simplify right side
    12,221.73x = 63,377,644.41
  5. Step 5: Solve for x
    x = 63,377,644.41/12,221.73
  6. Step 6: Final answer
    x = 5,185.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.